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The size of the normal force and coefficient of friction determines the size of frictional force.
the ammount of force and the surface the object is sliding against
The density of the object or the shape of the object (like a boat) determines the buoyant force.
how hard the surfaces push to gether the types of surfaces involved
The friction coefficient of the two 'bodies' determines the retarding friction force. Represented by μ sub f in physics books. Friction coefficients can be measured in a lab or, sometimes, be looked up in books for an approximation. The coefficient is specific to each case.
The size of the normal force and coefficient of friction determines the size of frictional force.
The size of the normal force and coefficient of friction determines the size of frictional force.
The more polar the molecule, the stronger the force.
Typically not. However rolling friction is somewhat of a myth. Rolling friction is actually caused by static friction. There are really only two types of friction: Static and Kinetic. That's it! Rolling friction is caused by static friction and the coefficient of friction (which determines its strength) is dependent upon the two materials of interaction.
strength New: The force of friction. When you apply the brakes, they grip the wheel, creating friction, which slows down the spinning.
the ammount of force and the surface the object is sliding against
The density of the object or the shape of the object (like a boat) determines the buoyant force.
Density and weight d = m/v
The roughness of the two objects coming in contact determines the degree of friction.
no
The strength of the force of friction depends on the types of surfaces involved and on how hard the surfaces push together.
how hard the surfaces push to gether the types of surfaces involved